Not to mention it has the decanoate ester. Decanoate lingers for a long time in your system, it takes a long time to break down. When you stop injecting decanoate you'll need quite some time for it to clear and let your PCT meds take effect. PCT meds will signal the hypothalamus-pituitary to produce testosterone, however if testosterone is present in your blood then it stays shut down, rendering PCT meds ineffective. Know why deca has such a bad rep in regards to shut down/recovery? Nandrolone decanoate. Learn from others wisdoms just like you would do for lethal things, since you know dead people can't come back to tell you it was lethal, deca has a horrible reputation for people who are natural/do PCT. Think erectile dysfunction for a long time after, higher risk of never getting natural test production back et.c.